Percolator for coffee and the like



Oct. 17, 1944. J. MASIN PERCOLATOR FOR COFFEE AND THE LIKE 3 Sheets-Sheet 1 Filed Nov. 21, 1941 INVENTOR. JOJEPH MAS/N. BY 0 6 Oct 1?, 1944. J. MASIN PERCOLATOR FOR COFFEE AND THE LIKE Filed Nov. 21, 1941 3 Sheets-Sheet 2 INVENTOR. JOSEPH MAS N.

A TTORNEY.

Oct. 17, 1944. J. MASIN PERCOLATOR FOR'COFFEE AND THE LIKE Filed Nov. 21, 1941 s Sheets-Sheet s INVENTOR. 4 JOSEPH M/iSl/V.

A TTORNEY.

. band on a reduced scale;

Patented Oct. 17, 1944 UNITED STATES PATENT OFFICE 2,360,569 PERCOLATOR FOR COFFEE AND THE LIKE Joseph Masin, New York, N. Y. Application November 21, 1941, Serial No. 419.958

3 Claims.

This invention relates to a percolator for coffee and the like. i

The object of the invention is the production of a percolator, by means of which filtered, clear coffee is made.

The second object of the invention is the production of the percolator constructed to avoid breaking its lower receptacle by excessive steam pressure.

The third object of the invention is the production of a percolator, in which the cofiee grounds are evenly distributed in its upper receptacle, to prevent clogging of the cofiee on its way to the lower receptacle. The fourth object of the invention is the production of a percolator with means to easily separate the receptacles thereof and" avoid breakage of the nozzle of the upper receptacle.

The fifth object of the invention is the produc tion of a percolator with means to prevent burning the hands of the user, when pouring coffee out of the lower receptacle of the percolator.

The sixth object of the invention is the production of a percolator, the receptacles of which have interposed between them fins, which prevent the receptacles to be blown one from the other by excessive pressure in the lower receptacle and also to make an air tight means for the lower receptacle.

The seventh object of the invention is the production of a percolator with means to prevent the flowing of the cofiee grounds and fluids from the upper receptacle.

Various other objects of the invention will be evident from the specification.

In the drawings Fig. 1 represents an elevation of the percolator in position for use; Fig. 2 is an elevation of the percolator in position to remove its top receptacle; Fig. 3, shows a longitudinal section of the percolator with portions in full lines and its upper receptacle in its tilted position; Fig. 4 shows an elevation of the' handle of the percolator and its lifter and cover partly broken away; Fig. 5 indicates an elevation of the upper portion of the filter rod and its valve chamber; Fig. 6 is a top view of the clamping Fig. 7 shows an elevation of the upper receptacle partly in section with a portion of the nozzle; Fig. 8 indicates a top view of Fig. '7; Fig. 9 shows a section of Fig. 3 on the line 9, 9; Fig. 10 is an elevation'of the filter rod, partly in'longitudinal section and its valve chamber.

The percolator comprises the lower bulb shaped 55 0 for the cover 42 is indicated at 41 receptacle bottom 2!, the large circular inlet nozzle 25 and the semi-\circular supporting head 30.

A clamping band 3|, preferably of metal, comprises the semi-cylindrical body portion 32, which latter has extending therefrom the parallel arms 33.

A handle 35, preferably of plastic material is shown with its upper guard 36. and the latter has the projecting portion 31 with the U shaped cut-out 38, integral therewith. Screws 39 connect the arms 33 and the portion 37 of the handle.

A stop pin 40 extends from the portion 31.

A cover for the receptacle 2!; is indicated at and comprises the hood shaped body portion having the curved end 44 with the circular The projection 45 is adapted to A lifting arm which has integral therewith the lifting members 48 with the curved ends 49, see Fig. 9.

A button 50 extends from one of the lifting members 48, to swing the cover 42, on the hinge pins 5|.

The upper glass bulb shaped receptacle of the percolator is indicated in its entirety by the numeral 52. The said receptacle 52 is shown with the upper inlet end 53. The body portion of the receptacle 52 is indicated with the circumferential corrugations 54. The bottom wall of the receptacle 52 is indicated at 55.

From the wall 55 extends the longitudinal cylindrical wall 56, from which the supporting wall 51 extends forming the filter chamber 51a slightly below the wall 55. From thewall 51 extends the cylindrical wall 58 and from the latter extends the fiat wall 59 at right angles thereto. A cylindrical wall 60 extends from the wall 59. A fiat wall 6|, with the extension 62 extends from the wall 60 andforms the lower chamber 62a.

A nozzle 63 extends from the wall 6! and comprises the barrel 64 having the indentationsBS, the tapered portion 66 and the outlet portion 61.

, A tubular filter-rod 10 is shown with its upper portion in section.

The rod 10 comprises the portion 72 with the inner longitudinal opening 13. An adjusting disc 15 extends from the cylindrical portion 12, and from the latter extends the cylindrical portion 16 somewhat larger in diameter than the portion 12. From the portion 16 ex- 43, projection 45. enter the circular inlet nozzle 25.

tends the threaded lower end 17, which is engaged by the indentations 65.

The lower end 11 is positioned in the barrel 64.

20, preferably of glass having the fiat upper cylindrical of the rubber gasket H0.

At. the upper end of cylindrical portion I2 is indicated the flange 18, having a pair of diametrically opposite openings 18 which extend to the bottom of flange 18. A cylindrical projection 80 extends from the flange 18 with the spherical valve seat 8 I A spherical shaped discharge valve chamber 85 preferably of metal comprises the body portion 86, having the horizontal groove 81, forming a circular projection 81a in the valve chamber and the vertical groove cated a clamping wire 89 which extends to the openings E9, to detachably hold the valve chamber 85 in place.

A displacing rod 83 extends into the valve chamber 85 and is shown with the end flanges 82 and 95. A helical spring 96 is supported on the rod 93 between the wall ofthe valve chamber 85 and the flange 95.

A plurality of discharge openings 91 extend through the lower portion of the valve chamber 85.

A spherical valve 98 is indicated in the valve chamber 85, and is adapted to be seated on the spherical seat 8!.

A pair of filter discs I00, are located in the chamber 51a, the lower one of which bears on the supporting wall 51, and the circumferential portions of the said discs bear against the circumferential wall of the said chamber 51a. The location of the filter discs prevent their being injured by the hot water and steam used for making the coffee to be described.

A rubber gasket is designated in its entirety by the numeral H0. The said gasket H comprises the upper annular flange H2, which bears against the wall 55 of the receptacle 52. The circular portion l l3 extends from the flange H2 and encircles the cylindrical wall 56 of the chamber 51a. From the portion H3 extends the fiat portion H5, which bears against the supporting wall 51. Below the portion H5 is shown the parallel portion H8, which bears against the wall 59 of the lower chamber 62a. From the portion H6 extends the circular longitudinal wall H! which encircles the wall 60 of the lower chamber 820.

Fins l20, see Fig. '7 extend from the wall H1, Both the chambers 51a and 52a, are essential for mounting the rubber gasket I III in place.

To use the percolator the members thereof are assembled as shown in Fig. l. The operator then tilts the upper receptacle 52, by swinging the cover 42 to the position shown in Fig. 2. The upper receptacle 52 is then removed from the lower receptacle.

The filter rod 10 is next removed from the upper receptacle 52 and the filter discs Hill are positioned in the chamber 51a. The filter rod 18 is now located in place with its adjusting disc 15, bearing on the upper filter disc Hill. The filter rod 1.0 is tightened in place by turning it, and its threaded lower end 11 engages the indentations 65 of the barrel 64.

Water is now poured into the lower receptacle 20 through the inlet nozzle 25.

Next the upper receptacle 52 is positioned in place upon the lower receptacle 20-, and then the percolator is positioned with the bottom wall 2| of the receptacle 20, on a heater like an electric heater or gas stove and the like. Ground coffee is then dropped into the upper' receptacle 52 through its inlet end 53, which covers the wall 55 and the disc 15, and is evenly distributed.

By virtue of this 88. In the groove 88 is indi-- grounds as just described, clogging in the chamber 62a is avoided, and permits the coffee to easily enter the lower receptacle 20.

The water in the receptacle 20 when heated generates vapor which bears upon the water in said receptacle and forces the water up through the filter rod 10 and raises the spherical valve 98 from its seat 8 I.

Steam and water enters the valve chamber 85 from which the steam and water escapes through the openings 91 of said valve chamber, and enters the upper receptacle 52 and sprays upon the coffee grounds, preventing the latter flowing out of the upper receptacle 52.

By virtue of the construction of the filter rod 10, excessive steam pressure is avoided, as it only takes a pressure of about three ounces to raise the valve 98. The steam escapes through the openings 81 and the bursting of the lower receptacle is prevented. The operator now removes the percolator from the stove or heater, lowering the temperature therein, and the valve 98 drops to its seat and is guided by the projection 8%.. A partial vacuum is produced in the lower receptacle 20. The said vacuum pulls the liquid cofiee through the filter discs I00 into the lower receptacle, leaving the coffee grounds, oils and other foreign matter in the upper receptacle 52.

The operator now bears upon the flange t5 and thereby displaces the valve 98 from its seat, to permit air to enter the filter rod ill through the openings 91, to enter the lower receptacle 2t and breaking the vacuum to easily separate the receptacles, and which prevents the breakage of the nozzle 63.

The adjusting disc 15 bearing upon the filter discs Hill, produces an eificient filtration, producing a coffee clear of grounds and foreign matter.

The operator now swings the cover 82 to the position shown in Fig. 2. The ends 49 of the lifting members 58 are located to bear against the lower portion of the upper receptacle 52, and the latter is tilted as shown in Fig. 2, and overcomes the tension of the fins I20 of the rubber gasket M0, to easily separate the receptacles.

The operator now removes the upper receptacle 52 from the receptacle 20. The operator then swings down the cover 42 to close the lower receptacle to keep the coffee therein warm, see Fig. 4. When the cover 42 has been swung down as shown in said Fig. 4, the lifting arm 4'! has become heated by the boiling water in the lower receptacle 20. The operators hand when grasping the handle 35, is protected from being burnt by the guard 35, see Fig. 4.

When the cover 42 is swung down as just described, the stop pin Ml contacting with the 12am 41, prevents injury to the glass inlet nozzle The coffee in the lower receptacle is now ready to be used.

Various modifications may be made in the invention and the present exemplification is to be taken as illustrative and not limitative thereof.

Having described my invention 1 claim.

1. In a percolator the combination of a lower receptacle and an upper receptacle, a chamber at the lower end of the upper receptacle, filter discs in said chamber, a tubular filter rod extending from the upper receptacle into the lower receptacle, an adjusting disc extending from the filter rod adapted to bear on the upper of said filter discs, means to vertically adjust said filter rod, a flange at the upper end of the filter distribution of the coffee rod, a projection extending from said flange and aeedeee 3 having a valve seat at its upper end. a spherical rounding the flange, a iilter bearing on the lower valve chamber detachably connected to said wall of the first or upper chamber. extending flange, the said projection extending into said slightly into the bottom of the upper bowl, valve chamber. a spherical valve in the valve causing the eoflee grounds to remain in the large chamber functioning with said valve seat. a die- 5 area of the upper bowl and spreading and thinplacing rod to displace the spherical valve irom ning the grounds: and preventing entering and its seat to break the vacuum in the lower reoepclogging in either chamber.

tacle extending into the valve chamber and hav- 3.' In a glass type vacuum coffee maker whereing end flanges and a helical spring supported in a tube on the upper bowl extends into the on said rod and bearing between the valve cham- 10 lower bowl and the upper bowl is firmly sealed ber and the flange at the outer end of said rod. to the lower bowl, the combination of a handle 2. In a wide neck glass type vacuum coffee for the lower bowl, a lid for the lower bowl pivoted maker, wherein a tube on the upper bowl exon the handle, the lid pivoting means comprising tends into the lower bowl, and'the upper bowl an angular member having two depending arms is firmly sealed to the lower bowl; said upper 15 straddling the handle, the member being operbowl having a double chamber on its lower end able to swing the arms into engagement with above the tube, underneath one another, the top the bottom of the upper bowl to tilt same on the of the lower chamber being joined to the bottom lower bowl.

of the upper chamber by an inner flange thus JOSEPH MASIN. providing a space between the chambers sur- 2o 

